Axis Spectrum Analyzer
Instant generation of synchronized audio and video flash movies from 31 band spectrum analyzer having the audio recorded directly in MP3 from any desired audio source. Cool for real time audio. Check it out ! full screen , mic ,video output board. Also has a transparent mode for general desktop...
http://www.smartwin.com.br/axisspectrumadwarefree.exe - 6Mb - Download - Screenshot

CD Spectrum Pro
CD/Spectrum Pro is a CD/MP3 Player with Graphical Spectrum Analyzer for Windows. It has several independent parts: CD Audio player, Spectrum Analyzer, Mixer, MediaFiles (MP3/WAV) Player, Synchronized Visuals Window, etc. The CD Audio player has almost every feature you can find on any software... This new version of CD/Spectrum Pro was written to work in conjunction with The Psychedelic Screen Saver, and/or The Kinemorphic 3D Screen Saver, and/or the Hypnogenic Screen Saver to provide stunning visuals that 'dance to the beat' of the music you play on the CD or in the MediaFiles module.
http://www.synthesoft.com/download/cdsp2001.exe - 609Kb - Download - Screenshot

QuickAudio
QuickAudio is audio editing software, allowing you to edit, play and record digital audio as well as convert between various popular audio formats. It has standard audio editing features, audio spectrum analysis as well as support for up to 24 VST plugins.
http://www.sionsoft.com/QAudio1.0.zip - 3Mb - Download - Screenshot

32-bit AudioPlus
"AudioPLUS" is an easy-to-use and greatly looking MP3 Player aimed to playback audio files in the following formats: *. MP3, *. MP2, *. WAV, *. L3, *. L2 and *. ATX. Plus, it supports playlist files. It consists of three components: File Player, Equalizer (Graphic Equalizer - Spectrum Analyzer)... Spectrum analyzer allows you to choose the desired type of the spectrogram (3D-Spectrogram is also available! ... Skinable technology gives you an opportunity to adjust the design of "AudioPLUS" manually by editing of the color palette or the background image.
http://www.yukudr.com/software/setup.exe - 1Mb - Download - Screenshot

Fair-Sound Audio DSP Plug-ins
What is Fair-Sound? The Fair-Sound Audio DSP plug-in provides loudness compensation, an essential element that is conspicuously missing from the Windows Media Player 9 Series. Have you ever noticed how a high fidelity recording sounds great when the volume is high but thin and weak when played... The human ear has a nonlinear response to sounds at the extremes of the audio spectrum. ... By adjusting the low and high ends of the spectrum so that they appear to maintain the same relative loudness to that of midrange sounds, Fair-Sound provides the listener with a satisfying listening...
http://www.intricasys.com/fair-sound/setup.exe - 390Kb - Download - Screenshot

Acez Jukebox
Acez Jukebox is a windows audio player that plays MP3, MP2, Wav files, and audio CDs. Additional functionality includes a full-featured playlist editor, a killer user interface, a built-in spectrum analyzer and oscilloscope, a robust control set featuring balance adjustment, 10-band equalizer... Download and try for Free today!
ftp://ftp.acez.com/pub/acezJukebox.exe - 3Mb - Download - Screenshot

DART XP PRO
An affordable audio recording, restoration, and CD burning solution that offers the easiest way to achieve professional results. Use DART XP Pro to record from any audio source, or use on existing audio files to clean up even the most troublesome problems. ... Control a cutoff, or crossover, frequency and any audio below this cutoff frequency, selectable in Hertz (Hz), is ignored by the DeClick Plus tool. ... Fast file preview - makes viewing and editing very long audio files much faster and more convenient.
http://Download.dartpro.com/dartxppro.exe - 6Mb - Download - Screenshot

DeliPlayer2
DeliPlayer2 is a highly versatile audio player for Windows(tm) 98SE/ME and NT4. 0/2000/XP. DeliPlayer2 has a graphical and a standard Windows user interface and supports playlists with sub-lists. DeliPlayer2 supports over 230 audio formats, including: MP3, OGG Vorbis, Musepack, ImpulseTracker,... Feature-Spotlight: - supports over 230 audio formats - audio data is handled with 32bit precision for maximum playback quality - features a very powerful playlist that supports lists within lists - supports Internet Radios (both MP3 and OGG Vorbis Radios are supported) - supports cross-fading...
http://www.deliplayer.com/dlredir.php?obj=dp2 - 4Mb - Download - Screenshot

Spectrum Ananlyzer pro lab
:: New features to this program include * Musical Note detector * dBFS and RMS Peak Level Meter * Weighting filters dB(A), dB(B) and dB(C) * 48000 hz audio stream * wide screen compatible * Correlation percentaged labels * 1/3, 1/6, 1/12, 1/24 Octave displaying of the Spectrum * Zoom function,... ) :: Standard Features * A Visual Pause feature in the display for instantaneous evaluation of data * Direct comparisons with Function keys * Recording of the Critical Data with display of Amp, db, and frequency * Results can be saved in text files for further evaluation * 12 programmable...
http://www.pas-products.com/bin/anaprof.exe - 5Mb - Download - Screenshot

RAL / Realtime Analyzer Light
This is the latest version as of January 2003. This version program includes all features the DSSF3 has as of January 30, 2003. (The DSSF3 is our best sound measurement/analysis software and has been frequently updated. )Quality sound measurement software equivalent to at least US$10,000 hardware. ... It can be used broadly from a home audio, and a car audio to a concert hall. ... General realtime measurement function is entirely included. ... It has the signal generator and FFT analyzer for supervising distortion of the frequency characteristic, a S/N ratio, and a volume level.
http://www.ymec.com/dl/audio/PcAudioLTEMe.exe - 4Mb - Download - Screenshot